12:45 pm today
Fuel surcharges might also need to be reassessed, the Commerce Commission said.
Oil prices are falling and the Commerce Commission is reminding petrol companies that fuel prices should too.
Commissioner Bryan Chapple said it was reasonable for businesses to adjust their prices in response to higher and more volatile global wholesale prices but adjustments should also be made when prices came down.
"We just want to remind fuel companies that as we said when fuel prices were going up that we would be looking at things when they come down, and we're assuming that their costs of imported fuel will start declining, so we're monitoring that.
